<template>
	<view class="goods-item">
		<!-- 商品左侧图片区域 -->
		<view class="goods-item-left">
		  <radio :checked="goods.goods_state" color="#C00000" v-if="showRadio" @click="radioClickHandler"></radio>
		  <image :src="goods.goods_small_logo || defaultPic" class="goods-pic"></image>
		</view>
		<!-- 商品右侧信息区域 -->
		<view class="goods-item-right">
			<!-- 商品标题 -->
			<view class="goods-name">{{goods.goods_name}}</view>
			
			<view class="goods-info-box">
			  <!-- 商品价格 -->
			  <view class="goods-price">￥{{goods.goods_price | tofixed}}</view>
			  <!-- 商品数量 -->
			  <uni-number-box :min="1" :value="goods.goods_count" @change="numChangeHandler"></uni-number-box>
			</view>
		</view>
	</view>
</template>

<script>
	export default {
		name: "my-goods",
		// 定义 props 属性，用来接收外界传递到当前组件的数据
		props: {
			// 商品的信息对象
			goods: {
				type: Object,
				default: () => {},
			},
			showRadio: {
				type: Boolean,
				default: false,
			},
			 // 是否展示价格右侧的 NumberBox 组件
			    showNum: {
			      type: Boolean,
			      default: false,
			    },
		},
		data() {
			return {
				// 默认的空图片
				defaultPic: 'https://img3.doubanio.com/f/movie/8dd0c794499fe925ae2ae89ee30cd225750457b4/pics/movie/celebrity-default-medium.png',
			}
		},
		filters: {
			// 把数字处理为带两位小数点的数字
			tofixed(num) {
				return Number(num).toFixed(2)
			}
		},
		methods: {
		  // radio 组件的点击事件处理函数
		  radioClickHandler() {
		    // 通过 this.$emit() 触发外界通过 @ 绑定的 radio-change 事件，
		    // 同时把商品的 Id 和 勾选状态 作为参数传递给 radio-change 事件处理函数
		    this.$emit('radio-change', {
		      // 商品的 Id
		      goods_id: this.goods.goods_id,
		      // 商品最新的勾选状态
		      goods_state: !this.goods.goods_state
		    })
		  },
		  
		  // NumberBox 组件的 change 事件处理函数
		    numChangeHandler(val) {
		      // 通过 this.$emit() 触发外界通过 @ 绑定的 num-change 事件
		      this.$emit('num-change', {
		        // 商品的 Id
		        goods_id: this.goods.goods_id,
		        // 商品的最新数量
		        goods_count: +val
		      })
		    }
			
		}
	}
</script>

<style lang="scss">
	.goods-item-right {
	  display: flex;
	  flex: 1;
	  flex-direction: column;
	  justify-content: space-between;
	  .goods-name {
	    font-size: 13px;
	  }
	  .goods-info-box {
	    display: flex;
	    align-items: center;
	    justify-content: space-between;
	  }
	  .goods-price {
	    font-size: 16px;
	    color: #c00000;
	  }
	}
	.goods-item {
		display: flex;
		border-bottom: 1px solid #efefef;
		padding: 8rpx;

		.goods-item-left {
			display: flex;
			justify-content: space-between;
			align-items: center;

			.goods-pic {
				width: 200rpx;
				height: 200rpx;
				vertical-align: middle;
			}
		}

		.goods-item-right {
			display: flex;
			flex-direction: column;
			justify-content: space-between;

			.goods-title {
				font-size: 24rpx;
			}

			.goods-price {
				font-size: 32rpx;
				color: #c00000;
			}
		}
	}
</style>
